This is a 1980 article about Charles K. Johnson, who managed to bring FES membership to 3,000. He also was the first, along with his wife, to disperse newsletters to the public on the FES.
http://www.lhup.edu/~dsimanek/fe-scidi.htm
I myself have read this article. He was truley an amazing man and an important man in FES. He is a Flat Earth hero and flat earthers alike should think highley of him